Change pin display mode.

Modify pin display mode to show both pin name and value.  While it makes the
schematic a bit more cluttered, it's the only way to ensure that things
are hooked up properly.

Signed-off-by: fangsuei <fangsuei@fangsuei.com>
Added Microchip 24AA512 I2C EEPROM

Added package (TSSOP8), symbol, and device for the 512KB I2C EEPROM
from Microchip.

Signed-off-by: fangsuei <fangsuei@fangsuei.com>